On search tab, press ZL+X will add a code that would setup R0 for hacking of dynamically loaded module.
Normally ASM hack is setup with code type 0.
Code Type 0x0: Store Static Value to Memory
0TMR00AA AAAAAAAA VVVVVVVV (VVVVVVVV)
T: Width of memory write (1, 2, 4, or 8 bytes).
M: Memory region to write to (0 = Main NSO, 1 = Heap, 2 = Alias, 3 = Aslr).
R: Register to use as an offset from memory region base.
A: Immediate offset to use from memory region base.
V: Value to write.
The Register to use as offset is normally left at 0.
This code setup R0 with offset to write to NRO.
Set this code as master then use for example
04000000 to write to NRO space.
Only tested with ".hack//G.U. Last Recode"